Can I drink and drive a boat in Finland?
After a beer, usually yes — but at the helm the limit is 1.0‰. Waterway intoxication means operating a motorised vessel or a sizeable sailing boat at 1.0‰ or more (0.44 mg/l of breath), or while otherwise incapable of the task. The limit is not a free pass: you can be liable below it too if alcohol has impaired your ability to operate and the circumstances endanger others. In professional water traffic the limit is 0.5‰. Liability isn't limited to the skipper — it also reaches anyone taking part in navigating. Rowing boats, kayaks and SUPs fall outside the offence entirely — yet setting out drunk is still Finland's most common way to drown. Drinking at anchor is no offence at all.
📋 The rules
- The limit is 1.0‰ (or 0.44 mg/l breath) — it covers those steering motorised vessels and larger sailing boats, and anyone taking part in navigation.
- Below the limit you can still be liable if alcohol has impaired your ability and circumstances endanger others.
- Professional traffic (charter skippers, ferries) runs on a 0.5‰ limit.
- Rowing boats, kayaks, SUP boards and the like are excluded from the offence.
- The Water Traffic Act still binds everyone: the operator must be fit for the conditions — rowers included.
🔓 Exceptions
- Drinking at anchor or at the dock isn't an offence — operating is what counts.
- Being drunk as a passenger isn't a crime — but the skipper decides who steers home.
- The limit is no free pass: you can be liable below 1.0‰ if alcohol has impaired your ability to operate the vessel and conditions endanger others.
⚠️ Penalties
Waterway intoxication carries fines or up to two years' imprisonment — and a conviction is possible below 1.0‰ as well, if your ability to operate is impaired and others are endangered. There is no boating licence to lose, but the consequences land immediately: police, the Border Guard and Customs run breath tests on the water just as on the roads, and a trip that creates danger can be stopped on the spot. In professional traffic (charter skippers, ferries) the limit is 0.5‰, so the same couple of beers already meet the threshold.
📎 Sources
- Alko · Waterway intoxication is a crime →
- Yle · Five questions on boating intoxication →
- Minilex · Can a rowing boat trigger the offence →
❓ Frequently asked questions
What is the boating alcohol limit?
1.0‰ for recreational boating — motor vessels and larger sailing boats — and 0.5‰ in professional traffic. Measured on breath the limit is 0.44 mg/l, and you can still be liable below it if impaired and endangering others.
Does the limit cover rowing boats?
No — rowing boats, kayaks and SUP boards are excluded from the offence, so blood alcohol alone is not a crime there. The Water Traffic Act still requires rowers to be fit for the conditions, and the drowning risk is very real.
Can passengers drink on board?
Yes — criminal liability targets the operator and anyone taking part in navigation, not passengers. But if you take a turn at the helm or help navigate, you carry the same liability as the skipper, so agree the trip home in advance.
Are there breath tests on the water?
Yes: police, the Border Guard and Customs run checks on waterways exactly as they do on roads. A trip that creates danger can also be halted on the spot, even if the alcohol limit is not exceeded.
Does the rule cover an engineless sailing boat?
It does — the provision names the operator of a sizeable sailing vessel, so having no engine is no exemption. Rowing boats, kayaks and SUPs, by contrast, are expressly excluded.
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